5 EnglishIf the temperature or the humidity is beyond the following condi-tions, safety devices may work and the air conditioner may notoperate, or sometimes, water may drop from the indoor unit.3-1. FHQCOOLING [°C]HEATING [°C]* To avoid condensation and water dripping out the indoor unit.DB: Dry bulb temperatureWB: Wet bulb temperatureThe setting temperature range of the remote con-troller is 16°C to 32°C.3-2. FXHQRead the operation manual attached to the out-door unit.3. OPERATION RANGEOUTDOORUNITINDOOR OUTDOORTEMPERATURETEMPERATURE HUMIDITYRN50RN60DB 21 to 37 80%*orbelow DB 19.4 to 46WB 14 to 28RKS35 · 50 · 60RXS35 · 50 · 60DB 21 to 32 80%*orbelow DB – 10 to 46WB 14 to 284MKS58 · 753MXS52 · 684MXS68 · 805MXS90DB 21 to 37 80%*orbelow DB – 10 to 46WB 14 to 285MKS90 DB 21 to 37 80%*orbelow DB 10 to 46WB 14 to 28RZQ 140 · 200 ·250DB 21 to 37 80%*orbelow DB – 5 to 46WB 14 to 28RZQG 71 · 100 ·125 · 140DB 18 to 37 80%*orbelow DB – 15 to 50WB 12 to 28RZQSG 71 · 100 ·125 · 140DB 21 to 37 80%*orbelow DB – 10 to 43WB 14 to 28OUTDOORUNITINDOORTEMPERATUREOUTDOORTEMPERATURERXS35 · 50 · 60 DB 10 to 30 DB – 14 to 24WB – 15 to 183MXS52 · 684MXS68 · 805MXS90DB 10 to 30DB – 14 to 21WB – 15 to 15.5RZQG 71 · 100 ·125 · 140 DB 10 to 27 DB –19.5 to 21WB –20 to 15.5RZQ200 · 250 DB 10 to 27 DB – 14 to 21WB – 15 to 15RZQSG71 DB 10 to 30 DB – 14 to 21WB –15 to 15.5RZQSG 100 ·125 · 140 DB 10 to 28 DB – 14 to 21WB –15 to 15.5RZQ140 DB 10 to 27 DB – 14 to 21WB –15 to 15.5Regarding places for installation• Is the air conditioner installed at a well-ventilatedplace where there are no obstacles around?• Do not use the air conditioner in the followingplaces.a. Filled with much mineral oil such as cutting oilb. Where there is much salt such as a beach areac. Where sulfured gas exists such as a hot-springresortd. Where there are considerable voltage fluctua-tions such as a factory or plante. Vehicles and vesselsf. Where there is much spray of oil and vaporsuch as a cookery, etc.g. Where there are machines generating electro-magnetic wavesh. Filled with acid and/or alkaline steam or vapor• Is a snow protection measure taken?For details, consult your local dealer about snowprotection hoods, etc.Regarding wiring• All wiring must be performed by an qualifiedpersonnel.To do wiring, ask your local dealer. Never do it byyourself.• Make sure that a separate power supply circuitis provided for this air conditioner and that allelectrical work is carried out by qualified per-sonnel according to local laws and regulations.Pay attention to running noises, too• Are the following places selected?a. A place that can sufficiently withstand the massof the air conditioner with less running noisesand vibrations.b. A place where the hot wind discharged from theair outlet of the outdoor unit and the runningnoises do not cause a nuisance to neighbours.• Are you sure that there are no obstacles nearthe air outlet of the outdoor unit?Such obstacles may result in declined perfor-mance and increased running noises.• If abnormal noises occur in use, stop theoperation of the air conditioner, consult yourlocal dealer.Regarding drainage of drain piping• Is the drain piping carried out properly toensure complete drainage?If drain piping is not carried out properly, dirt anddebris may be accumulated in the drain pipingand cause water leakage. If it occurs, stop the airconditioner and consult with your local dealer forassistance.4. INSTALLATION SITE